Title: Host (Beta zeolite)-Guest (copper(II)-methyladenine complex) nanomaterials: synthesis and characterization
Authors: Teixeira, C.
Pescarmona, Paolo
Carvalho, M.A.
Fonseca, A.M.
Neves, I.C. # ×
Issue Date: 2008
Publisher: CNRS/Gauthier-Villars
Series Title: New Journal of Chemistry vol:32 issue:12 pages:2263-2269
Abstract: The guest copper(II)–methyladenine complex was entrapped into beta zeolite (BEA) as a host by a
process of sequential introduction of the components in the liquid phase followed by assembly
inside the void space of the zeolite. The beta zeolite was prepared by an original technique. The
appropriate process chosen for the in situ complex synthesis was using a 9-methyladenine
ligand : copper(II) molar ratio of 4 : 1. The new host–guest nanomaterial was purified by Soxhlet
extraction. The BEA zeolite with copper(II)–methyladenine complex was characterized by several
techniques: SEM and XRD, chemical analysis (CA), spectroscopic methods (EPR, FTIR, UV-Vis
and XPS) and TGA (thermal analysis). Analysis of the data indicates that the guest copper(II)
complex was effectively immobilized in BEA without any modification of the morphology and
structure of the zeolite. The coordination of the 9-methyladenine ligand with copper(II) ion as
guest in the host nanomaterial was obtained with a preferential 1 : 1 stoichiometry.
ISSN: 1144-0546
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Centre for Surface Chemistry and Catalysis
× corresponding author
# (joint) last author

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